CN216512961U - Structure for supplying oxygen by utilizing degassing membrane group underwater - Google Patents
Structure for supplying oxygen by utilizing degassing membrane group underwater Download PDFInfo
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- CN216512961U CN216512961U CN202122953092.3U CN202122953092U CN216512961U CN 216512961 U CN216512961 U CN 216512961U CN 202122953092 U CN202122953092 U CN 202122953092U CN 216512961 U CN216512961 U CN 216512961U
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Abstract
The utility model provides a structure for supplying oxygen by using a degassing membrane group underwater, wherein a membrane component is arranged in the side wall of the degassing membrane group, a plurality of selectable air-permeable micropores are arranged on the side wall of the membrane component, an aqueous solution flowing space is formed between the side wall of the membrane component and the side wall of the degassing membrane group, the aqueous solution flowing space is communicated with a liquid inlet of the degassing membrane group, the side wall of the membrane component encloses a membrane component inner cavity, the membrane component inner cavity is communicated with an exhaust port of the degassing membrane group, the exhaust port of the degassing membrane group is connected with a vacuumizing device through a first oxygen conveying pipeline, the vacuumizing device is communicated with an oxygen gas storage tank through a second oxygen conveying pipeline, the oxygen gas storage tank is communicated with an underwater oxygen supply system through a third oxygen conveying pipeline, so that oxygen in water can be efficiently removed and supplied to the underwater oxygen supply system, and no by-product is generated in the process of supplying oxygen, the energy consumption cost is low, and safe and reliable.
Description
Technical Field
The utility model relates to the technical field of underwater oxygen supply, in particular to a structure for supplying oxygen by utilizing a degassing membrane group underwater.
Background
The submarine has short submerging time in the early period, an independent oxygen supply device is not arranged on the submarine, only a ventilating pipe ventilating device is arranged, the submarine needs to float upwards after submerging for a period of time, the ventilating pipe extends out of the sea surface to ventilate with the outside, oxygen-poor air in the submarine is discharged, and oxygen-rich fresh air is supplemented into the submarine.
Later, with the continuous development of science and technology, the ventilation pipe is no longer the main means for supplying oxygen to the submarine. Many submarines begin to enter deep sea for submersion; moreover, the ventilation efficiency of the ventilation pipe is too low, which causes problems and is eliminated by the times.
The first submarine underwater oxygen supply equipment is compressed oxygen tanks, and the compressed oxygen tanks are used for providing emergency oxygen storage for crews when other ventilation equipment fails; the drawbacks of compressed oxygen are also evident: the oxygen reserve is too small, the concentration is too high, the oxygen is easy to be drunk, the high concentration oxygen is easy to cause explosion, and the like. The method of water electrolysis, sodium oxide oxygen production and the like for underwater oxygen supply is developed subsequently, the method of water electrolysis is used for underwater oxygen supply, the water electrolysis process is fast, water can be converted into oxygen through the electrolysis mode because water molecules are composed of oxygen atoms and hydrogen atoms, and although the oxygen is fast generated through water electrolysis in the mode, more energy is consumed, so that the method is only suitable for nuclear submarines and the hydrogen treatment after water electrolysis is troublesome; in addition, the sodium oxide oxygen generation method is used for underwater oxygen supply, but the sodium oxide oxygen generation method has high equipment cost, limited supply time, high requirement on the equipment and larger limitation.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the utility model provides a structure for supplying oxygen by using a degassing membrane group underwater, which can efficiently remove oxygen in water and supply the oxygen to an underwater oxygen supply system, does not generate byproducts in the oxygen supply process, and is environment-friendly, low in energy consumption and cost, safe and reliable.
In order to achieve the purpose, the technical scheme of the utility model is as follows:
a structure for removing oxygen in water by using a degassing membrane group comprises: the degassing membrane module is connected with a degassing membrane module liquid inlet and a degassing membrane module air outlet respectively, a membrane module is arranged in the side wall of the degassing membrane module, selectable breathable micropores are formed in the side wall of the membrane module, an aqueous solution flowing space is formed between the side wall of the membrane module and the side wall of the degassing membrane module, the aqueous solution flowing space is communicated with the degassing membrane module liquid inlet, a membrane module inner cavity is formed by the side wall of the membrane module in a surrounding mode, the membrane module inner cavity is communicated with the degassing membrane module air outlet, and the degassing membrane module air outlet is connected with a vacuumizing device through a first oxygen conveying pipeline.
The utility model provides a structure for supplying oxygen by using a degassing membrane group underwater, which can efficiently remove oxygen in water and supply the oxygen to an underwater oxygen supply system, does not generate byproducts in the oxygen supply process, and is environment-friendly, low in energy consumption and cost, safe and reliable.
The preferable technical scheme comprises the following steps: and the water inlet to be filtered is communicated with the filter through a liquid delivery pump.
As a preferred technical scheme, the filter is communicated with a liquid inlet of the degassing membrane group through a filtrate conveying pipeline.
According to a preferable technical scheme, a degassing membrane group air inlet is connected to the degassing membrane group, one end of the degassing membrane group air inlet is communicated with the inner cavity of the membrane module, and the other end of the degassing membrane group air inlet is communicated with a gas purging device through a gas purging pipeline.
Preferably, a check valve is connected to the first oxygen delivery pipe, and the check valve is used for preventing oxygen in the first oxygen delivery pipe from flowing back to the degassing membrane group exhaust port.
Preferably, a vacuum gauge is connected to the first oxygen delivery line between the check valve and the vacuum pump.
As a preferred technical solution, the vacuum gauge is electrically connected with a processor, the processor is electrically connected with a vacuum pumping controller, and the vacuum pumping controller is used for controlling the power of the vacuum pumping device to control the vacuum negative pressure to be constant.
As a preferred technical scheme, the vacuumizing device is communicated with an oxygen storage tank through a second oxygen conveying pipeline.
As a preferred technical scheme, the oxygen storage tank is communicated with an underwater oxygen supply system through a third oxygen conveying pipeline.
As a preferred technical scheme, a water pressure sensor is connected to the filtrate conveying pipeline and is electrically connected with a PLC (programmable logic controller), and the PLC is electrically connected with the liquid conveying pump.
Drawings
FIG. 1 is a structural diagram of a structure for removing oxygen from water by using a degassing membrane module according to the present invention;
FIG. 2 is a circuit diagram of a structure for removing oxygen from water by using a degassing membrane module according to the present invention;
FIG. 3 is a circuit diagram of a structure for removing oxygen from water by using a degassing membrane module according to the present invention;
wherein: 1-degassing membrane group; 2-degassing a liquid inlet of a membrane group; 3-degassing the exhaust port of the membrane group; 4-a first oxygen delivery conduit; 5-vacuumizing; 6-a water inlet to be filtered; 7-liquid delivery pump; 8-a filter; 9-a filtrate delivery conduit; 10-degassing membrane group air inlet; 11-gas purge line; 12-a gas purge; 13-a check valve; 14-vacuum gauge; 15-a second oxygen delivery conduit; 16-an oxygen storage tank; 17-a third oxygen delivery conduit; 18-underwater oxygen supply system; 19-water pressure sensor; and 20-a PLC controller.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
It is understood that the utility model achieves the objects of the utility model by means of some embodiments.
As shown in fig. 1, the present invention provides a structure for removing oxygen from water by using a degassing membrane module, comprising: a water inlet 6 to be filtered and a degassing membrane group 1, wherein the degassing membrane group 1 is respectively connected with a degassing membrane group liquid inlet 2, a degassing membrane group gas outlet 3 and a degassing membrane group gas inlet 10, the water inlet 6 to be filtered is communicated with the filter 8 through a liquid delivery pump 7, the filter 8 is communicated with the degassing membrane group liquid inlet 2 through a filtrate delivery pipeline 9, the filtrate delivery pipeline 9 is connected with a water pressure sensor 19, the water pressure sensor 19 is electrically connected with a PLC (programmable logic controller) 20, the PLC 20 is electrically connected with the liquid delivery pump 7, the PLC 20 controls the liquid delivery pump 7 to control the flow of liquid entering the degassing membrane group liquid inlet 2, the aqueous solution flowing space is communicated with the degassing membrane group liquid inlet 2, a membrane module is arranged in the side wall of the degassing membrane group 1, and a plurality of selectable gas-permeable micropores are arranged on the side wall of the membrane module, an aqueous solution flowing space is formed between the side wall of the membrane module and the side wall of the degassing membrane group, a membrane module inner cavity is enclosed by the side wall of the membrane module, the membrane module inner cavity is communicated with the degassing membrane group exhaust port 3, the degassing membrane group exhaust port 3 is connected with a vacuumizing device through a first oxygen conveying pipeline 4, a check valve 13 is connected on the first oxygen conveying pipeline 4, the check valve 13 is used for preventing oxygen in the first oxygen conveying pipeline 4 from flowing back to the degassing membrane group exhaust port 3, a vacuum meter 14 is connected on the first oxygen conveying pipeline 4 between the check valve 13 and the vacuumizing device 5, the vacuum meter 14 is electrically connected with a processor, the processor is electrically connected with a vacuumizing device controller, the vacuumizing device controller is used for controlling the power of the vacuumizing device 5 to control the constant vacuumizing negative pressure, and the vacuumizing device 5 is communicated with an oxygen gas storage tank 16 through a second oxygen conveying pipeline 15, the oxygen storage tank 16 is communicated with an underwater oxygen supply system 18 through a third oxygen conveying pipeline 17.
Firstly, water is pumped into a water inlet 6 to be filtered, the water to be filtered is pressurized into a filter 8 through a liquid delivery pump 7 and is filtered to obtain filtered water, the filter 8 is arranged to prevent impurities in the water from blocking a degassing membrane group 1, the filtered water is pumped into an aqueous solution flowing space from a liquid inlet 2 of the degassing membrane group, the side wall surface of the membrane component is provided with a plurality of selectable air-permeable micropores of 30-80nm, the selectable air-permeable micropores can allow oxygen gas in the filtered water to pass through and enter the inner cavity of the membrane component in a molecular form, but due to the surface tension of the filtered water, the water in the aqueous solution flowing space can not pass through the selectable air-permeable micropores on the side wall surface of the membrane component to remove the oxygen in the filtered water, meanwhile, a sweeping nitrogen is applied through a gas sweeping device 12 in the inner cavity of the membrane component for sweeping, and under the combined action of vacuumizing and sweeping nitrogen of a vacuumizing device 5, oxygen removed from the water continuously moves to the inner cavity of the membrane module through the selective breathable micropores on the surface of the side wall of the membrane module, is discharged to an oxygen storage tank through a second oxygen conveying pipeline 15 under the vacuum pumping action, and then oxygen in the oxygen storage tank 16 is introduced into an underwater oxygen supply system 18 through a third oxygen conveying pipeline 17.
In the operation process, attention needs to be paid to the fact that the vacuum meter is always kept at negative pressure (-0.92 MPa to-0.96 MPa), if the negative pressure is too high, membrane components in a degassing membrane group can permeate, and if the negative pressure is too low, the oxygen gas release amount can be reduced.
As shown in fig. 2, the vacuum gauge 14 is electrically connected to a processor, and the processor is electrically connected to a vacuum controller for controlling the power of the vacuum unit 5 to control the vacuum negative pressure to be constant. Presetting a negative pressure threshold value (-0.92 MPa to-0.96 MPa), when the negative pressure threshold value of the vacuum gauge is smaller than the actual negative pressure value of the vacuum gauge, feeding back a signal that the negative pressure threshold value of the vacuum gauge is smaller than the actual negative pressure value of the vacuum gauge to a processor through the vacuum gauge, detecting the signal by the processor, processing the signal, transmitting the actual negative pressure value that the negative pressure threshold value of the vacuum gauge is smaller than the actual negative pressure value of the vacuum gauge to a vacuum extractor controller, and controlling and increasing the power of the vacuum extractor to control the negative pressure to be-0.92 MPa to-0.96 MPa by the vacuum extractor controller; when the preset vacuum gauge negative pressure threshold value is greater than the negative pressure actual value of the vacuum gauge, the negative pressure actual value signal that the preset vacuum gauge negative pressure threshold value is greater than the vacuum gauge is fed back to the processor through the vacuum gauge, the processor detects the signal, processes the signal, and transmits the negative pressure actual value that the preset vacuum gauge negative pressure threshold value is greater than the vacuum gauge to the vacuum extractor controller, and the vacuum extractor controller controls and adjusts the power of the vacuum extractor so as to control the negative pressure to be-0.92 MPa to-0.96 MPa, so that the vacuum gauge is kept constant at the negative pressure of-0.92 MPa to-0.96 MPa, the links of field inspection of workers are reduced, and the safety of an oxygen structure in water removed by using the degassing membrane is ensured.
As shown in fig. 3, the filtrate delivery pipeline 9 is connected with a water pressure sensor, the water pressure sensor is electrically connected with a PLC controller, the PLC controller is electrically connected with a liquid delivery pump, a flow threshold value entering the liquid inlet of the degassing membrane module is preset, when the water pressure sensor feeds back an electric signal that the actual value of the flow of the liquid inlet of the degassing membrane module is smaller than the preset flow threshold value entering the liquid inlet of the degassing membrane module to the PLC controller, the PLC controller controls to turn on or turn up the liquid delivery pump 7 so as to control to increase the liquid inlet amount entering the filter 8, when the water pressure sensor feeds back an electric signal that the actual value of the flow of the liquid inlet 2 of the degassing membrane module is larger than the preset flow threshold value entering the liquid inlet 2 of the degassing membrane module to the PLC controller 20, the PLC controller 20 controls to turn off or turn down the liquid delivery pump so as to control to decrease the liquid inlet amount entering the filter 8, thereby ensuring the normal operation of the degassing membrane module, the service life of the degassing membrane group is prolonged, the links of field inspection of workers are reduced, and the production safety is improved.
The utility model provides a structure for supplying oxygen by using a degassing membrane group underwater, which can efficiently remove oxygen in water and supply the oxygen to an underwater oxygen supply system, does not generate byproducts in the oxygen supply process, and is environment-friendly, low in energy consumption and cost, safe and reliable.
It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes in the features and embodiments, or equivalent substitutions may be made therein by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all modifications and equivalents falling within the scope of the appended claims. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.
Claims (8)
1. A structure for supplying oxygen by utilizing a degassing membrane group underwater is characterized by comprising: the degassing membrane group, be equipped with degassing membrane group inlet and degassing membrane group gas vent on the degassing membrane group respectively, be equipped with the membrane module in the lateral wall of degassing membrane group, be equipped with a plurality of optional ventilative micropores on the lateral wall of membrane module, the lateral wall of membrane module with form aqueous solution flow space between the lateral wall of degassing membrane group, aqueous solution flow space and degassing membrane group inlet intercommunication, the lateral wall of membrane module encloses into the membrane module inner chamber, the membrane module inner chamber with degassing membrane group gas vent intercommunication, degassing membrane group gas vent is connected with the evacuation ware through first oxygen pipeline, the evacuation ware passes through second oxygen pipeline and oxygen gas holder intercommunication, the oxygen gas holder passes through third oxygen pipeline and an oxygen supply system intercommunication under water, oxygen supply system is used for the oxygen suppliment under water.
2. The structure for supplying oxygen by using degassing membrane module under water as claimed in claim 1, comprising: and the water inlet to be filtered is communicated with the filter through a liquid delivery pump.
3. The structure for supplying oxygen by using the degassing membrane group underwater as claimed in claim 2, wherein the filter is communicated with the liquid inlet of the degassing membrane group through a filtrate conveying pipeline.
4. The underwater oxygen supply structure by using the degassing membrane module as claimed in claim 1, wherein a degassing membrane module air inlet is formed in the degassing membrane module, one end of the degassing membrane module air inlet is communicated with the inner cavity of the membrane module, and the other end of the degassing membrane module air inlet is communicated with a gas purging device through a gas purging pipeline.
5. The structure for supplying oxygen underwater using a degassing membrane module according to claim 1, wherein a check valve is connected to the first oxygen delivery pipe, and the check valve is used for preventing oxygen in the first oxygen delivery pipe from flowing back to the degassing membrane module exhaust port.
6. The structure for supplying oxygen by using a degassing membrane module under water as claimed in claim 5, wherein a vacuum gauge is connected to the first oxygen delivery pipe between the check valve and the vacuum extractor.
7. The structure for supplying oxygen by using degassing membrane module under water as claimed in claim 6, wherein the vacuum gauge is electrically connected with the processor, the processor is electrically connected with the vacuum pumping controller, and the vacuum pumping controller is used for controlling the power of the vacuum pumping device to control the vacuum negative pressure to be constant.
8. The underwater oxygen supply structure using a degassing membrane module according to claim 3, wherein a water pressure sensor is connected to the filtrate delivery pipeline, the water pressure sensor is electrically connected to a PLC controller, and the PLC controller is electrically connected to the liquid delivery pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122953092.3U CN216512961U (en) | 2021-11-29 | 2021-11-29 | Structure for supplying oxygen by utilizing degassing membrane group underwater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122953092.3U CN216512961U (en) | 2021-11-29 | 2021-11-29 | Structure for supplying oxygen by utilizing degassing membrane group underwater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216512961U true CN216512961U (en) | 2022-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122953092.3U Active CN216512961U (en) | 2021-11-29 | 2021-11-29 | Structure for supplying oxygen by utilizing degassing membrane group underwater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216512961U (en) |
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2021
- 2021-11-29 CN CN202122953092.3U patent/CN216512961U/en active Active
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